Attachment for looping-machines.



\ PATENTEDJ'ULY s, 1906.

' J. PEARSON. ATTACHMENT FOR LOOPING MACHINES. APPLICATION FILED JUNE 20, 1905.

JOSEPH PEARSON, OF PHILADELPHIA, PENNSYLVANIA.

ATTACHMENT FOR LOOPING-MACHINES.

Specification of Letters Patent.

Patented July 3, 1906.

Application filed June 20,1905. Seria No. 266,110.

To to whom it may concern.-

Be it known that I, JosEPn PEARSON, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Attachment to Looping-Machines, of which the following is a specification.

My invention relates to an improvement in machines for uniting knit fabrics con structed according to the patent to William Pearson, No. 273,143, dated February 27, 1883 and it consists of a novel construction of hook-holder adapted to be used in machines for uniting knit fabrics, whereby the looper-hooks and the needles have always substantially the same relation owing to the employment of a hardened cone or roller bearing adjustably secured to the hookholder and adapted to coact with the loopercam, by means of which the hook-holder is actuated. I

It further consists in a novel manner of rotatably mounting the cone or roller on the hook-holder.

It further consists of other novel features of construction, all as will be hereinafter fully setforth.

Figure 1 represents a side elevation of a portion of a looping-machine, showing a hook-holder embodying my invention. Fig. 2 represents a rear elevation of a portion of a looping-machine, showing certain parts thereof on line 90 at, Fig. 1, in section. Fig. 3 represents a perspective view of the rear member of the hook-holder, cone, and fastening device in detached and disassembled position.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings, 1 designates the base or bed plate, having secured thereto the standards 2 and 3, in which is journaled a ro tatable shaft 4.

5 designates an eccentric fixed on the shaft 4 and having an arm 6 actuated thereby and adapted to rotate the needle-disk 7, a portion of which is shown in Fig. 1, but having the needles removed.

8 designates a combined eccentric and cam i having the operative surfaces 9 and 10. 11 designates a cam-runner adapted to i travel on the surface 8 and which is pivoted to the needle-lever 12, which latter carries the needle-clamp 13, adapted to retain a needle 14 therein.

15 designates the tension-bracket of any approved type.

16 designates the take-up spring.

17 designates a spring secured to the needle-lever 12 at one end and to the front section of the hooleholder 18 at its other end.

19 designates the rear member or section of the hook-holder, which is secured to the hook-holder post 20 in the usual manner, the rear member and the forward member of the hook-holder being fastened together in any suitable manner, as by a screw or bolt 21.

22 designates a lug or raised portion at the end of the rear section, having a conical face 23 and a threaded openin 24 therethrough. 25 designates a recess opposite said lug and near the end of the rear section and in which a hardened cone or roller 26 is adapted to be retained by means of a screw or bolt 27, which passes therethrough and which has a threaded end adapted to engage the thread in the opening 24, whereby the relation of the cone 26 and the rear section 19 may be adjusted. As is well known by those skilled in the art, the hook-holder as ordinarily constructed is provided with a camsurface which coacts with a rotating cam to raise and lower the hook-holder and that owing to the wear on the cam-surface of the hook-holder the relation of the looper-hooks with the needles is constantly changing. As a result many needles are broken and the looperhooks must be lowered to allow the stitch to be caught up from the needles, thus greatly increasing the expense of operating the looping-machine, as a large amount of time and labor is lost. When the ordinary hookholder becomes much worn, it must be thrown away and replaced by a new one. In my novel construction the hardened cone or roller 26 may be set by means of the set screw or bolt 27, so that it will not rotate, or it may have enough play to freely rotate as desired. If the cone is fixed and has begun to wear in one place, a new operative surface may be obtained by simply loosening the screw 27 turning the cone the required amount, and

then tightening said screw. It will be apparent that there will be very little wear on the hardened roller, which coacts with .the looping-cam, and that the level and the distance of the looper-hooks from the needle will be practically constant. The front and rear sections of the hook-holder may be made integral without departing from the spirit of my invention.

I have deemed it unnecessary to illustrate or describe in detail the construction and operation of the machine for uniting knit fabric, since it would be preferably constructed according to the patent to William Pearson,

No. 273,143, dated February 27, 1883, tol

which reference may be had for the detailed description and operation of the machine and j since my invention relates wholly to the novel construction of hook holder having mounted thereon a hardened cone or roller adapted to coact with the looper-cam.

While-I have shown my novel construction as being especially adapted for use in machines constructed according to the patent to Pearson aforesaid, it is apparent that it may be employed to great advantage in all of the machines of this class now on the market.

It will be evident that various changes may be made by those skilled in the artl which may come within the scope of my invention, and I do not, therefore, desire to be limited in every instance to the exact construction herein shown and described.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A hook-holder member having a lug 1 with conical face and formed with a recess j extending outwardly from said lug, a harl dened cone or roller rotatably mounted within said recess, and an axial support for said cone adjustably held in said lug.

2. In a hook-holder for loopers, a lug thereon having a conical face, a threaded opening in said lug, an adjustable, removable harf dened roller, and a bolt adapted to engage t said thread and hold said roller in fixed relation to said hook-holder.

3. In a hook-holder a rear section having a lug with conical face and formed with a recess extending outwardly from said lug, a hardened cone or roller rotatably mounted within said recess, an adjustable support for said cone, and a cooperating hook-holder l member having spring connection with the needle-lever. 4. In ahook-holder for loopers, alug thereon having a conical face, a threaded opening i therein, a recess extending outwardly fiom i said lug, a hardened cone or roller adapted to rotate within said recess, and a bolt or screw on which said roller is rotatably mounted, adapted to engage said thread and hold said roller in adjustable relation to said lu JOSEPH PEARSCON.

IVitnesses JOHN A. WIEDERSHEIM, H. S. FAIRBANKS. 

